import java.util.Scanner;

public class Test {
    public static void main2(String[] args) {
        System.out.println("hello");
        /* byte a = 130;   //都会报错
        float b = 3.5f;*/
        int a = 3;
        byte b = (byte)a;
    }

    public static void main(String[] args) {
        //scanner 工具   System.in
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();

        if(a % 2 == 0) {
            System.out.println("偶数");
        }else {
            System.out.println("奇数");
        }

    }
}
a